Results 1 to 10 of about 6,479 (185)

Gate Road Support Deformation Forecasting Based on Multivariate Singular Spectrum Analysis and Fuzzy Time Series [PDF]

open access: yesEnergies, 2021
Underground mining engineers and planners in our country are faced with extremely difficult working conditions and a continuous shortage of money. Production disruptions are frequent and can sometimes last more than a week. During this time, gate road support is additionally exposed to rock stress and the result is its progressive deformation and the ...
Luka Crnogorac   +5 more
openaire   +2 more sources

Prevalence and correlates of dizziness in community-dwelling older people: a cross sectional population based study

open access: yesBMC Geriatrics, 2013
Background Dizziness is a common complaint among older adults and has been linked to a wide range of health conditions, psychological and social characteristics in this population.
de Moraes Suzana Albuquerque   +3 more
doaj   +1 more source

Multivariate winning probabilities [PDF]

open access: yes, 2018
The research reported in this paper has been supported by Project TIN2014-59543-
Baets, Bernard de   +2 more
core   +2 more sources

Absorptive capacity and the growth and investment effects of regional transfers : a regression discontinuity design with heterogeneous treatment effects [PDF]

open access: yes, 2012
Researchers often estimate average treatment effects of programs without investigating heterogeneity across units. Yet, individuals, firms, regions, or countries vary in their ability, e.g., to utilize transfers.
Becker, Sascha O.   +2 more
core   +1 more source

Multivariable Fuzzy Measure Entropy Analysis for Heart Rate Variability and Heart Sound Amplitude Variability [PDF]

open access: yesEntropy, 2016
Simultaneously analyzing multivariate time series provides an insight into underlying interaction mechanisms of cardiovascular system and has recently become an increasing focus of interest. In this study, we proposed a new multivariate entropy measure, named multivariate fuzzy measure entropy (mvFME), for the analysis of multivariate cardiovascular ...
Lina Zhao   +3 more
openaire   +2 more sources

Heterogeneous Kohonen networks [PDF]

open access: yes, 2001
A large number of practical problems involves elements that are described as a mixture of qualitative and quantitative infomation, and whose description is probably incomplete.
Belanche Muñoz, Luis Antonio   +1 more
core   +1 more source

The role of human factors in stereotyping behavior and perception of digital library users: A robust clustering approach [PDF]

open access: yes, 2007
To deliver effective personalization for digital library users, it is necessary to identify which human factors are most relevant in determining the behavior and perception of these users.
Chen, SY   +3 more
core   +1 more source

Formulation of linguistic regression model based on natural words [PDF]

open access: yes, 2004
When human experts express their ideas and thoughts, human words are basically employed in these expressions. That is, the experts with much professional experiences are capable of making assessment using their intuition and experiences. The measurements
Khalid, M.   +3 more
core   +1 more source

Consistency Index-Based Sensor Fault Detection System for Nuclear Power Plant Emergency Situations Using an LSTM Network [PDF]

open access: yes, 2020
A nuclear power plant (NPP) consists of an enormous number of components with complex interconnections. Various techniques to detect sensor errors have been developed to monitor the state of the sensors during normal NPP operation, but not for emergency ...
Choi, Jeonghun, Lee, Seung Jun
core   +1 more source

Fuzzy Control of Multivariable Nonlinear Systems Using T–S Fuzzy Model and Principal Component Analysis Technique

open access: yesProcesses
In this work, a new nonlinear control method is proposed, which integrates the Takagi–Sugeno (T–S) fuzzy model with the Principal Component Analysis (PCA) technique. The approach uses PCA to reduce the system’s dimensionality, minimizing the number of fuzzy rules required in the T–S fuzzy model.
Al-Hadithi, Basil Mohammed   +1 more
openaire   +2 more sources

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